Replacement Bulbs for Candle Warmer NP5 Published February 1, 2017 at 250 × 250 in Replacement Bulbs for Candle Warmer NP5 Use this 25 watt NP5 replacement bulb in some of our tart burners or jar warmers. Be sure you check the compatibility of this bulb with your candle warmer because we carry a lot of different brands.